I have been taking Tri-Lo-Sprintec for about a year and a half now, and until 7 months ago have I been sexually active. But that's not what I am really concerned about.

I have taken it religiously, but I'm 3 days into my last set of pills for the month. They are white, without hormones, and I am supposed to start my period while on the white set. However, I have not started my period.

It has happened where I'll be late, but this particular time I'm worried. There hasn't been any sign of an upcoming period, and this worries me.

I had unprotected sex while on the last set of blue pills, which have hormones. This scenario has occurred before, but I just want to some answers.

As much as this scares me to say, could I possibly be pregnant?

(Edit: I've only had sex with my boyfriend, considering I have lost my virginity to him. We've had unprotected sex often, but he's clean. (No STD's or HIV))

Don't mean to freak you out, but unfortunately the pill is not always as safe as everyone assumes. I found out about three months ago that I am pregnant. I was on Tri Lo Sprintec *religiously* I have since met three or four other women who also got pregnant on birth control.

That being said, take a test. It''s the only way to be sure and you rarely get a false positive. If you get a negative, take it again in a few days just to be sure.

And remember, you have options. Don't ever be afraid to seek out sources to have this discussion with. Should you be pregnant, it is your decision and your decision alone to make so don't let anyone else influence that. Seek out non-biased resources you know you can trust (i.e. a doctor, a therapist, Planned Parenthood, a trusted relative)

Best of luck. I know its definitely a life-changing experience, even just facing the possibility.